A private street primarily designed to serve as secondary access to the side or rear of those properties whose principal frontage is on a street, either public or private, meeting minimum municipal requirements.

Narrow street that provides access to the rear of buildings by going through the middle of a block. A narrow street, walk or lane between two rows of buildings.

An alley or alleyway is a narrow, pedestrian lane found in urban areas which usually run between or behind buildings. In older cities and towns in Europe, alleys are often what is left of a medieval street network. In the British Isles an alley may be a right of way or ancient footpath in an urban setting.

What you roll on. One of the intricacies of the game is that no two alleys are the same. There are long ones, short ones, those with wooden pins, some with plastic pins, some with heavy balls some with light balls.